diff --git a/lib/posix/options/grp.c b/lib/posix/options/grp.c
index 32c840e10164f..af395c88fa00c 100644
--- a/lib/posix/options/grp.c
+++ b/lib/posix/options/grp.c
@@ -9,8 +9,6 @@
 #include <zephyr/sys/util.h>
 #include <zephyr/posix/grp.h>
 
-#ifdef CONFIG_POSIX_THREAD_SAFE_FUNCTIONS
-
 int getgrnam_r(const char *name, struct group *grp, char *buffer, size_t bufsize,
 	       struct group **result)
 {
@@ -33,5 +31,3 @@ int getgrgid_r(gid_t gid, struct group *grp, char *buffer, size_t bufsize, struc
 
 	return ENOSYS;
 }
-
-#endif /* CONFIG_POSIX_THREAD_SAFE_FUNCTIONS */
diff --git a/lib/posix/options/pwd.c b/lib/posix/options/pwd.c
index f806767f3df90..5cafbb0a3a94a 100644
--- a/lib/posix/options/pwd.c
+++ b/lib/posix/options/pwd.c
@@ -9,8 +9,6 @@
 #include <zephyr/sys/util.h>
 #include <zephyr/posix/pwd.h>
 
-#ifdef CONFIG_POSIX_THREAD_SAFE_FUNCTIONS
-
 int getpwnam_r(const char *nam, struct passwd *pwd, char *buffer, size_t bufsize,
 	       struct passwd **result)
 {
@@ -33,5 +31,3 @@ int getpwuid_r(uid_t uid, struct passwd *pwd, char *buffer, size_t bufsize, stru
 
 	return ENOSYS;
 }
-
-#endif /* CONFIG_POSIX_THREAD_SAFE_FUNCTIONS */